Title

Melting Metals

Broad Question

What is the weight of the metal after being melted.

Specific Question

What is the weight of aluminum, copper, and iron after being melted.

Hypothesis

It is Hypothesized that iron will way more after being melted.

Graph of Hypothesis

Variables

Independent Variable:

Type of metal

Dependent Variable:

weight after being melted

Variables That Need To Be Controlled:

Same type of metal and how hot the flame is

Vocabulary List That Needs Explanation

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General Plan

Trying to melt 5 grams of aluminum, 5 grams of iron, and 5 grams of copper. To see if the weight of the metal will change. It’s going to be at at school. During class. Be using a Bunsen burner that is hooked up to a propane line and have 5 grams of the metals in a crucible and have a blowtorch heating the metal to from above the crucible. Do it when there is workshop time in class. Take a scale and see of the 5 grams of each metal went up or down. The hypothesis is that Iron will melt fastest. It will control it by after melting the metal, take it and make it room temp. The independent variable is the different types of metal as started and when its finished. Make a little mold out of clay to hold the melted metal in. After it is hardened again chip away the clay and measure it again.

Potential Problems And Solutions

The person conducting the experiment might catch on fire or glass might shatter and hurt someone. If that happen you where goggles when the glass shatters or when the person conducting the experiment ketches on fire, should stop drop and role to a fire blanket.

Safety Or Environmental Concerns

The safety of people is the most important, people should stay away from where the experiment is held. But if they were helping, they would have had to where goggles and a plastic apron. If the room ketches on fire, get a fire extinguisher.

Experimental Design

(add the correct headings from the experimental design page before beginning)

Resources and Budget Table

Material's	where to get it	how much	cost
Copper	From Mr.Yahna	4*5=20 grams of it	0.00
Aluminum	From Mr.yahna	4*5=20 grams of it	0.00
Iron	From Home	4*5=20 grams of it	0.00
Crucible	From Mr.yahna	3 or 2	0.00
Bunsen burner	From Mr.Yahna	1	0.00
gram scale	From Mr.yahna	1	0.00
stop watch	From Mr.Yahna	1	0.00.
ring stand with ring	From Mr yahna	1	0.00
lab station	From Mr.yahna	1	0.00
fire extinguisher	From Mr.yahna	1	0.00
lighter	From Mr.Yahna	1	0.00
safety goggles	From Mr.yahna	1	0.00
clay mold	From art teacher	1	0.00

Background Research

The melting point of iron is 1,535 degrees C.
The melting point of Aluminum is 660.37 degrees C.
The melting point of copper is 1084 gegrees C.

References

www.freebase.com
http://www.chemicalelements.com/elements/al.html
http://www.engineeringtoolbox.com/melting-temperature-metals-d_860.html

Detailed Procedure

1. Get the iron, copper, aluminum, Bunsen burner, some propane and a propane line, a box of matches, a timer, a holder, a mold, and a crucible.
2. Mass the metals so they are 5 grams each.
3. Repeat the mass measuring until there are four 5 gram piles of each metal.
4. Put the crucible on the ring stand holder above the Bunsen burner at the lab station .
5. Put 5 grams of metal in the crucible.
6. Hook up the propane line to the bunsenburner and turn it on.
7. Let the propane line sit for a couple of seconds until you smell the propane
8. When it is ready light the match and put it next to the Bunsen burner where the gas is coming out of the top.
9. When the bunsenburner is lit start a stop watch timing the melting of metal.
10. When the metal is completely melted stop the stop watch and the Bunsen burner and write down the times on a piece of paper.
11. Then let the Bunsen burner cool down and the switch the Crucible.
12. Do that for the rest of the metals
13. Gather the all the time and average them out but keep the other time.
14. Put the melted metal into a mold.
15. Put it on cold sand and when it is hardened chip the mold away.

Diagram

Photo List

the metal as it is right now (as a solid in four 5 gram piles),
the bunsenburner not lit ,
the crucible on the ring stand,
the matches,
the melted metal in the crucible,
the fire in the Bunsen burner,
the match on fire,
the propane line,
the case for the melted metal,
the line hooked up the the burner,
and every thing done.

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Results

The mass of the metals got more dense. The iron had the second least increase it had a .13 gram increase. Copper had the least because it had the 0.0 grams.Aluminum had the most of a 1.33 increase. Aluminum weighed 6.33 grams which weighed most out of all of its trials. Copper weighed 5.15 grams which weighed most out all of its trials. The iron weighed 5.13 grams which weighed most out all of its trials. All of them went down in weight. Alumin went down by .2 grams. Copper didn’t go down. Iron went down by .32 grams.

All Raw Data

Graphs

Photos

iron melted

Aluminum

Robert working

copper

iron weight

Broken crucible

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metal in water

all metal melted

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Data Analysis

Conclusion

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An experiment was conducted to know the weight of certain metals after being melted. three. different types of metal and had three five grams of them. Aluminum starts at five grams and then went down to four point eight after being melted. Then Copper starts at five grams and went up to five point fifteen. Then Iron which starts at five grams it went down to four point sixtyeight. Then back to aluminum, it starts at five grams and went up to six point eighteen. The on the third trial of aluminum, it went up to six point thirtythree. The average for aluminum was five point seventy seven. Copper second trial started at five grams and stayed the same. The third trial started at five grams and went up to five point two. The average was five point o five six repeating for copper. The second trial for iron started at five grams and went down to four point ninety eight. The third trial stats at five grams and went up two five point thirteen. The average was four point nine three.

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Discussion

What is the weight of metal after it is melted. When it’s melted the metal becomes more dense. When the metal was weighed after being melted some of the metals weight went down but some went up a little bit. The hypothesis was not supported by the results because the metal was alot lower than the hypothesis. When the metals were melted by the torch and the bunsen burner the heat caused the metal to start melting. When the metal starts to get hot the metal starts to shrink and build up on itself.
There was no trends in the experiment. The relationship of the independent and the dependent variable was strong. The weight could have changed if the metals didn't weigh the same. The challenge was to melt it. Use a blowtorch to see after how much it weighed after. Also changed instead of how long it took to melt to how much it weighed.
I used a blowtorch a binsinburner a crucible and the three metals. It could be more planned. You need alot of materials. It could be a benefit because we might have to use certain metals that have to be melted by a bunsen burner and it won't work so they have to have a blowtorch to.

Benefit to Community and/or Science

There is no benefit to the community or Science.

Abstract

An experimenter was conducted to see if the weight of metal would change after being melted. The metal was melted by a Bunsen burner and a blow torch. After it was melted it would going into water to cool it down then go on a scale to see how much it ways.